WIP: Android Support mixWithOthers configuration

Author: wwwdata

packages/video_player/android/src/main/java/io/flutter/plugins/videoplayer/VideoPlayerPlugin.java

@@ -52,6 +52,14 @@
 
 public class VideoPlayerPlugin implements MethodCallHandler {
 
+  private static class VideoPlayerOptions {
+    public VideoPlayerOptions(boolean mixWithOthers) {
+      this.mixWithOthers = mixWithOthers;
+    }
+
+    private final boolean mixWithOthers;
+  }
+
   private static class VideoPlayer {
 
     private SimpleExoPlayer exoPlayer;
@@ -66,14 +74,18 @@ private static class VideoPlayer {
 
     private boolean isInitialized = false;
 
+    private final VideoPlayerOptions options;
+
     VideoPlayer(
         Context context,
         EventChannel eventChannel,
         TextureRegistry.SurfaceTextureEntry textureEntry,
         String dataSource,
-        Result result) {
+        Result result,
+        VideoPlayerOptions options) {
       this.eventChannel = eventChannel;
       this.textureEntry = textureEntry;
+      this.options = options;
 
       TrackSelector trackSelector = new DefaultTrackSelector();
       exoPlayer = ExoPlayerFactory.newSimpleInstance(context, trackSelector);
@@ -154,7 +166,7 @@ public void onCancel(Object o) {
 
       surface = new Surface(textureEntry.surfaceTexture());
       exoPlayer.setVideoSurface(surface);
-      setAudioAttributes(exoPlayer);
+      setAudioAttributes(exoPlayer, options.mixWithOthers);
 
       exoPlayer.addListener(
           new EventListener() {
@@ -198,10 +210,10 @@ private void sendBufferingUpdate() {
     }
 
     @SuppressWarnings("deprecation")
-    private static void setAudioAttributes(SimpleExoPlayer exoPlayer) {
+    private static void setAudioAttributes(SimpleExoPlayer exoPlayer, boolean isMixMode) {
       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
         exoPlayer.setAudioAttributes(
-            new AudioAttributes.Builder().setContentType(C.CONTENT_TYPE_MOVIE).build(), true);
+            new AudioAttributes.Builder().setContentType(C.CONTENT_TYPE_MOVIE).build(), !isMixMode);
       } else {
         exoPlayer.setAudioStreamType(C.STREAM_TYPE_MUSIC);
       }
@@ -295,6 +307,8 @@ private VideoPlayerPlugin(Registrar registrar) {
 
   private final Registrar registrar;
 
+  private boolean mixWithOthers = false;
+
   private void disposeAllPlayers() {
     for (int i = 0; i < videoPlayers.size(); i++) {
       videoPlayers.valueAt(i).dispose();
@@ -321,6 +335,9 @@ public void onMethodCall(MethodCall call, Result result) {
       case "init":
         disposeAllPlayers();
         break;
+      case "setMixWithOthers":
+        this.mixWithOthers = call.arguments;
+        break;
       case "create":
         {
           TextureRegistry.SurfaceTextureEntry handle = textures.createSurfaceTexture();
@@ -329,6 +346,7 @@ public void onMethodCall(MethodCall call, Result result) {
                   registrar.messenger(), "flutter.io/videoPlayer/videoEvents" + handle.id());
 
           VideoPlayer player;
+          VideoPlayerOptions options = new VideoPlayerOptions(mixWithOthers);
           if (call.argument("asset") != null) {
             String assetLookupKey;
             if (call.argument("package") != null) {
@@ -343,12 +361,13 @@ public void onMethodCall(MethodCall call, Result result) {
                     eventChannel,
                     handle,
                     "asset:///" + assetLookupKey,
-                    result);
+                    result,
+                    options);
             videoPlayers.put(handle.id(), player);
           } else {
             player =
                 new VideoPlayer(
-                    registrar.context(), eventChannel, handle, call.argument("uri"), result);
+                    registrar.context(), eventChannel, handle, call.argument("uri"), result, options);
             videoPlayers.put(handle.id(), player);
           }
           break;